What is the Least Common Multiple of 11921 and 11938?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 11921 and 11938 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11921 and 11938, than apply into the LCM equation.

GCF(11921,11938) = 1
LCM(11921,11938) = ( 11921 × 11938) / 1
LCM(11921,11938) = 142312898 / 1
LCM(11921,11938) = 142312898

Least Common Multiple (LCM) of 11921 and 11938 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11921 and 11938. First we will calculate the prime factors of 11921 and 11938.

Prime Factorization of 11921

Prime Factorization of 11938

Now multiplying the highest exponent prime factors to calculate the LCM of 11921 and 11938.

LCM(11921,11938) = 7¹ × 13¹ × 131¹ × 2¹ × 47¹ × 127¹
LCM(11921,11938) = 142312898